The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2001
Filed:
May. 04, 1998
Tatsuya Tsuruoka, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A demodulating apparatus and a demodulating method includes a correlation detector for detecting a correlation between a guard section of the symbol of a digital orthogonal frequency division multiplex modulated signal and a section having a correlation with the guard section in an effective symbol of the symbol, a section integrator for section integrating a detected output of the correlation detector with respect to the guard section, a peak detector for detecting a peak of a triangular wave signal from the section integrator, and a frame timing signal producing circuit for producing a frame timing signal of a predetermined frame of each of the frames based on a peak detecting signal from the peak detector. The frame synchronizing signal generator circuit may be made synchronized by a frame timing signal from the frame timing signal producing circuit.